Pituitary metastases: current practice in Japan
Tóm tắt
With advancement of cancer treatment and development of neuroimaging techniques, contemporary clinical pictures of pituitary metastases (PMs) must have changed from past reports. The goal of this paper was to elucidate the clinical features of PMs and current clinical practice related to those lesions. In this retrospective study, questionnaires were sent to 87 physicians who had treated PMs in Japan.
Between 1995 and 2010, 201 patients with PMs were treated by the participating physicians. The diagnosis of PM was histologically verified in 69 patients (34.3%). In the other 132 patients (65.7%), the PM was diagnosed by their physicians based on neuroimaging findings and clinical courses. The most frequent primary tumor was lung (36.8%), followed by breast (22.9%) and kidney (7.0%) cancer. The average interval between diagnosis of primary cancer and detection of PM was 2.8 ± 3.9 (SD) years. Major symptoms at diagnosis were visual disturbance in 30.3%, diabetes insipidus in 27.4%, fatigue in 25.4%, headache in 20.4%, and double vision in 17.4%. Major neuroimaging features were mass lesion in the pituitary stalk (63.3%), constriction of tumor at the diaphragmatic hiatus (44.7%), hypothalamic mass lesion (17.4%), and hyperintensity in the optic tract (11.4%). Surgical treatment was performed in 26.9% of patients, and 74.6% had radiation therapy; 80.0% of patients who underwent radiotherapy had stereotactic radiotherapy. The median survival time was 12.9 months in total. Contributing factors for good prognosis calculated by Cox proportional hazard analysis were younger age, late metastasis to the pituitary gland, smaller PM size, and radiation therapy. The Kaplan-Meier survival was significantly better in patients with breast cancer and renal cell cancer than in those with lung cancer.
At the time of this writing, approximately 60% (120/201) of PMs had been treated by stereotactic radiation therapy in Japan. The median survival time was much longer than that reported in past series. To confirm the changes of clinical features and medical practice, a prospective and population-based survey is mandatory.
Từ khóa
Tài liệu tham khảo
Bakhtiar, 2014, Geometric survey on magnetic resonance imaging of growth hormone producing pituitary adenoma, 17, 142, 10.1007/s11102-013-0479-z
Bellew, 2009, Skin cancer in Asians: part 2: melanoma, 2, 34
Branch, 1987, Metastatic tumors of the sella turcica masquerading as primary pituitary tumors, 65, 469, 10.1210/jcem-65-3-469
Chiang, 1990, Pituitary metastases, 33, 127
Committee of the Brain Tumor Registry of Japan, 2009, Report of Brain Tumor Registry of Japan (1984–2000), 49, PS1
Duchen, 1966, Metastatic carcinoma in the pituitary gland and hypothalamus, 91, 347, 10.1002/path.1700910208
Fassett, 2004, Metastases to the pituitary gland, 16, E8
Gsponer, 1999, Diagnosis, treatment, and outcome of pituitary tumors and other abnormal intrasellar masses. Retrospective analysis of 353 patients, 78, 236, 10.1097/00005792-199907000-00004
Hägerstrand, 1969, Metastases to the pituitary gland, 75, 64
Houck, 1970, Clinical features of tumor metastasis to the pituitary, 26, 656, 10.1002/1097-0142(197009)26:3<656::AID-CNCR2820260325>3.0.CO;2-M
Hsing, 2000, International trends and patterns of prostate cancer incidence and mortality, 85, 60, 10.1002/(SICI)1097-0215(20000101)85:1<60::AID-IJC11>3.0.CO;2-B
Kano, 2009, Stereotactic radiosurgery for pituitary metastases, 72, 248, 10.1016/j.surneu.2008.06.003
Komninos, 2004, Tumors metastatic to the pituitary gland: case report and literature review, 89, 574, 10.1210/jc.2003-030395
Max, 1981, Pituitary metastasis: incidence in cancer patients and clinical differentiation from pituitary adenoma, 31, 998, 10.1212/WNL.31.8.998
Ntyonga-Pono, 1999, Pituitary metastases. 3 cases, 28, 1567
Pinet, 2000, Panhypo-pituitarism secondary to pituitary metastases, 29, 17
Ruelle, 1992, Pituitary metastases as presenting lesions of malignancy, 36, 51
Saeki, 2001, Oedema along the optic tracts due to pituitary metastasis, 15, 523, 10.1080/026886901317195482
Schubiger, 1992, Metastases to the pituitary—hypothalamic axis. An MR study of 7 symptomatic patients, 34, 131, 10.1007/BF00588159
Teears, 1975, Clinicopathologic review of 88 cases of carcinoma metastatic to the pituitary gland, 36, 216, 10.1002/1097-0142(197507)36:1<216::AID-CNCR2820360123>3.0.CO;2-E
Yasuda, 2004, The medial wall of the cavernous sinus: microsurgical anatomy, 55, 179, 10.1227/01.NEU.0000126953.59406.77